GB2227083B - Observation of furnace interiors - Google Patents

Observation of furnace interiors

Info

Publication number
GB2227083B
GB2227083B GB8928309A GB8928309A GB2227083B GB 2227083 B GB2227083 B GB 2227083B GB 8928309 A GB8928309 A GB 8928309A GB 8928309 A GB8928309 A GB 8928309A GB 2227083 B GB2227083 B GB 2227083B
Authority
GB
United Kingdom
Prior art keywords
camera
furnace
sited
employed
pinhole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB8928309A
Other versions
GB8928309D0 (en
GB2227083A (en
Inventor
David Ian Dawson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Steel PLC
Original Assignee
British Steel PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by British Steel PLC filed Critical British Steel PLC
Publication of GB8928309D0 publication Critical patent/GB8928309D0/en
Publication of GB2227083A publication Critical patent/GB2227083A/en
Application granted granted Critical
Publication of GB2227083B publication Critical patent/GB2227083B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/24—Test rods or other checking devices
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4673—Measuring and sampling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • F27D21/02—Observation or illuminating devices
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2476—Non-optical details, e.g. housings, mountings, supports
    • G02B23/2492—Arrangements for use in a hostile environment, e.g. a very hot, cold or radioactive environment

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Astronomy & Astrophysics (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Cameras In General (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)

Abstract

This invention provides a method of observing the interior of a furnace by viewing, at a remote location, the image depicted by a pinhole camera sited in or within the furnace housing. The image may be real and viewed directly or via a reflective or fibre optic transmission system, or alternatively a video camera may be employed, in this instance the 'screen' of the camera may be constituted by light responsive elements, e.g. charge coupled devices. The camera may typically be sited in the furnace wall or roof and a pressurised blast of air or an inert gas, e.g. nitrogen or argon, may be employed for maintaining the integrity of the pinhole.
GB8928309A 1988-12-20 1989-12-14 Observation of furnace interiors Expired - Fee Related GB2227083B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888829695A GB8829695D0 (en) 1988-12-20 1988-12-20 Observation of furnace interiors

Publications (3)

Publication Number Publication Date
GB8928309D0 GB8928309D0 (en) 1990-02-21
GB2227083A GB2227083A (en) 1990-07-18
GB2227083B true GB2227083B (en) 1992-12-16

Family

ID=10648807

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888829695A Pending GB8829695D0 (en) 1988-12-20 1988-12-20 Observation of furnace interiors
GB8928309A Expired - Fee Related GB2227083B (en) 1988-12-20 1989-12-14 Observation of furnace interiors

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888829695A Pending GB8829695D0 (en) 1988-12-20 1988-12-20 Observation of furnace interiors

Country Status (8)

Country Link
US (1) US4969035A (en)
EP (1) EP0374642B1 (en)
JP (1) JPH02259389A (en)
AT (1) ATE90733T1 (en)
CA (1) CA2006035A1 (en)
DE (1) DE68907188T2 (en)
ES (1) ES2041391T3 (en)
GB (2) GB8829695D0 (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2754745B2 (en) * 1989-06-15 1998-05-20 株式会社日立製作所 Remote maintenance system for automatic teller machine
GB9022496D0 (en) * 1990-10-17 1990-11-28 British Steel Plc Measurement of the temperature of a melt
FI90469C (en) * 1992-02-25 1994-02-10 Imatran Voima Oy Arrangement in a hearth camera
US5831668A (en) * 1992-02-25 1998-11-03 Imatran Voima Oy Assembly for combustion chamber monitoring camera
US5587736A (en) * 1993-02-16 1996-12-24 Envision Medical Corporation Sterilizable CCD video camera
AU685526B2 (en) * 1994-12-07 1998-01-22 Bluescope Steel Limited Optical viewing apparatus
US6778209B1 (en) 1997-09-26 2004-08-17 Diamond Power International, Inc. Furnace video camera apparatus
US6069652A (en) 1997-09-26 2000-05-30 Ultrak, Inc. Furnace video camera apparatus
US6091444A (en) * 1997-11-25 2000-07-18 United States Enrichment Corporation Melt view camera
DE19815827A1 (en) * 1998-04-09 1999-10-14 Univ Ilmenau Tech Apparatus for investigating thermal processes in material samples
US6804582B1 (en) 2000-09-25 2004-10-12 Ucar Carbon Company Inc. Digital electrode observation
US7386369B1 (en) * 2004-08-09 2008-06-10 Graftech International Holdings Inc. Digital electrode observation
US7991039B2 (en) 2004-11-30 2011-08-02 Graftech International Holdings Inc. Electric arc furnace monitoring system and method
US7522834B2 (en) * 2006-03-03 2009-04-21 Papertech Inc. Camera housing with self-cleaning view port
US20100062652A1 (en) * 2008-09-05 2010-03-11 Wen-Chi Liu Power adapter with changeable plug
EP2437021B1 (en) * 2010-09-29 2013-05-01 TMT Tapping-Measuring-Technology GmbH Device and method for protecting an optical observation opening
US9017435B2 (en) * 2010-10-08 2015-04-28 General Electric Company Gasifier monitor and control system
CN103503442A (en) * 2011-02-28 2014-01-08 安赛乐米塔尔研究与发展有限责任公司 Method and apparatus for real time video imaging of the snout interior on a hot dip coating line
US8596798B1 (en) 2011-08-08 2013-12-03 U.S. Department Of Energy Transpiration purging access probe for particulate laden or hazardous environments
TW201334665A (en) * 2011-11-11 2013-08-16 Vale Sa Scanner protection casing and system of reading the height of the pellet bed of grid cars inside a grid furnace comprising a scanner protected by said casing
KR101404715B1 (en) * 2013-02-04 2014-06-09 한국수력원자력 주식회사 Temperature monitoring apparatus for glass melter
EP2784392B1 (en) * 2013-03-25 2016-08-31 Hitachi Zosen Inova AG Flame sensor
FI128141B (en) 2017-04-12 2019-10-31 Procemex Oy Ltd Pinhole camera with an integrated lens cleaning chamber and a lens cleaning system for a pinhole camera
KR102135754B1 (en) * 2018-08-13 2020-07-20 주식회사 포스코 Refining apparatus and method
CN116793077A (en) * 2022-03-18 2023-09-22 伊利诺斯工具制品有限公司 Temperature measuring device and furnace comprising same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB696434A (en) * 1950-10-18 1953-09-02 Babcock & Wilcox Ltd Improvements in or relating to inspection means for viewing the interiors of combustion chambers
GB1002351A (en) * 1961-05-24 1965-08-25 Fuel Firing Ltd Air deflection means particularly for use in furnace and oil burner observation equipment
GB1495229A (en) * 1975-07-01 1977-12-14 Centre Rech Metallurgique Inspecting the interior of an enclosure
JPS60200890A (en) * 1984-03-27 1985-10-11 Nec Corp Image furnace

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3609236A (en) * 1968-09-30 1971-09-28 Bethlehem Steel Corp Apparatus for televising the interior of hazardous chamber
US4022530A (en) * 1974-03-22 1977-05-10 Bodenseewerk Perkin-Elmer & Co. Gmbh Device for atomizing a sample for flameless atomic absorption measurements
BE830896A (en) * 1975-07-01 1976-01-02 PROCEDURE FOR ENSURING AND MAINTAINING THE CLEANLINESS OF AN OBSERVATION PORT
BE830895A (en) * 1975-07-01 1976-01-02 DEVICE FOR MONITORING THE INTERIOR OF A SPEAKER
US4432286A (en) * 1982-05-19 1984-02-21 The United States Of America As Represented By The United States Department Of Energy Combustion pinhole camera system
US4539588A (en) * 1983-02-22 1985-09-03 Weyerhaeuser Company Imaging of hot infrared emitting surfaces obscured by particulate fume and hot gases
AT381727B (en) * 1984-08-16 1986-11-25 Voest Alpine Ag METHOD FOR PRODUCING MELT PRODUCTS FROM SULFIDIC NON-FERROUS METAL ORES OR. CONCENTRATES AND DEVICE FOR IMPLEMENTING THE PROCESS
US4749171A (en) * 1984-09-06 1988-06-07 Nippon Steel Corporation Method and apparatus for measuring slag-foam conditions within a converter
CA1306632C (en) * 1986-12-01 1992-08-25 Hironobu Kobayashi Spectroscope apparatus and reaction apparatus using the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB696434A (en) * 1950-10-18 1953-09-02 Babcock & Wilcox Ltd Improvements in or relating to inspection means for viewing the interiors of combustion chambers
GB1002351A (en) * 1961-05-24 1965-08-25 Fuel Firing Ltd Air deflection means particularly for use in furnace and oil burner observation equipment
GB1495229A (en) * 1975-07-01 1977-12-14 Centre Rech Metallurgique Inspecting the interior of an enclosure
JPS60200890A (en) * 1984-03-27 1985-10-11 Nec Corp Image furnace

Also Published As

Publication number Publication date
GB8928309D0 (en) 1990-02-21
US4969035A (en) 1990-11-06
JPH02259389A (en) 1990-10-22
GB8829695D0 (en) 1989-02-15
ES2041391T3 (en) 1993-11-16
GB2227083A (en) 1990-07-18
EP0374642A1 (en) 1990-06-27
EP0374642B1 (en) 1993-06-16
CA2006035A1 (en) 1990-06-20
DE68907188T2 (en) 1993-10-21
ATE90733T1 (en) 1993-07-15
DE68907188D1 (en) 1993-07-22

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19951214